Unparticle Effects on Top Quark Pair Production at Photon Collider

TL;DR

This paper explores how scalar unparticles could influence top quark pair production at future photon colliders, predicting distinctive distribution features that could reveal unparticle properties.

Contribution

It introduces the potential impact of scalar unparticles on top quark pair production and identifies unique distribution features for experimental investigation.

Findings

An odd valley in invariant mass distribution due to unparticle effects

Significant role of scalar unparticles in top pair production

Potential to study unparticle properties through collider distributions

Abstract

The unparticle effects on $t\bar t$ production at the future photon collider are investigated. Distributions of $t\bar t$ invariant mass and that for transverse momentum of top quark with respect to Standard Model and unparticle production are predicted. An odd valley with scalar unparticle contribution appears for some values of $d_{\U}$, which is due to the big cancellation between the contribution from SM and that from unparticle. This character may be used to study the properties of scalar unparticle. Our investigations also show that scalar unparticle may play a significant role in $t \bar t$ production at photon collider if it exists.